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File:Andromeda and Milky Way collision sequence.jpg

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English: This series of photo illustrations shows the predicted merger between our Milky Way galaxy and the neighboring Andromeda galaxy.
  • First Row, Left: Present day.
  • First Row, Right: In 2 billion years the disk of the approaching Andromeda galaxy is noticeably larger.
  • Second Row, Left: In 3.75 billion years Andromeda fills the field of view.
  • Second Row, Right: In 3.85 billion years the sky is ablaze with new star formation.
  • Third Row, Left: In 3.9 billion years, star formation continues.
  • Third Row, Right: In 4 billion years Andromeda is tidally stretched and the Milky Way becomes warped.
  • Fourth Row, Left: In 5.1 billion years the cores of the Milky Way and Andromeda appear as a pair of bright lobes.
  • Fourth Row, Right: In 7 billion years the merged galaxies form a huge elliptical galaxy, its bright core dominating the nighttime sky.
Date
Source http://www.nasa.gov/mission_pages/hubble/science/milky-way-collide.html
Author Credit: NASA; ESA; Z. Levay and R. van der Marel, STScI; T. Hallas, and A. Mellinger
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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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22 June 2012

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